Conveyor Control Circuit

From conveyor control system hardware control panel, door and check the signal, programmable controller, inverter speed control system, the control system architecture as shown

1.Chart speed inverter to complete the function, and logic control part is completed by the PLC.PLC responsible for the various signals

Send to a logic processing from the stop signal transduction responsible, while frequency converter will be their transport to the PLC operating state, forming a two-way

relationship.System also with the car is equipped with coaxial connection with rotary encoder and PG card, complete

Into a speed test and feedback form a closed loop speed and position loop.In addition, the system must also be equipped with a braking resistor, when the elevator is running

slow, the motor is in the national renewable energy generation, electricity back to the sensor, the pressure is increased with elevator lifts four-story office building designed

for AC

DC.The suppression through the analysis, the input signal shows the system including protection, selection of operating conditions, the on / off control 26, the position

detection, call ladder control.Output speed signal 21, including on / off, up, down, control signal converter, alarm, lighting

Such as Mitsubishi FX2's - 64MR PLC.Yaskawa use 616G5 inverter CIMR selected above on.Based - G5A 4022 Universal  Telescopic belt conveyor, technical features are: asynchronous motor direct

control current to maintain high output motor torque; suitable for various applications, at low and very

Surgically smooth start; This is the automatic adjustment feature can achieve a variety of high-performance motor control; its U / F control, vector control, closed loop ü / F

control, closed loop vector control melt into four control modes, including closed-loop the most suitable elevator control vector control

requirements.Rotary main motor encoder and a coaxial connector, through Pike Ka (also called encoder interconnect) for motor speed and position feedback elevator.Use Omron 's

light pulse pulse incremental rotary encoder.Coaxial 1024 rotary encoder with car

Connections, resulting in the A, B, A two-phase pulse phase pulse.When 90 degrees ahead of the B-phase pulse, the motor rotates country; when A-phase pulse lags behind the 90-

degree phase B pulse, that is, in reverse state.According motor A, B phase pulse phase sequence, you can determine the motor shift.According

To A, B pulse frequency (or period) can be measured motor speed.If A, B phase pulse edge before or after the counting pulses generated can be formed on behalf of the forward and

reverse displacement displacement flexible conveyor table pulse.Rotary encoder pulses This card output to Pique, Pike Ka adjustments will make this calculation

The feedback signal converter.